For most Firebase Web apps we strongly recommend using the SDK via npm. However, for users with special requirements, Firebase provides alternative ways to add the SDK. This page provides detailed setup instructions for these alternative methods:
- CDN (content delivery network)
- npm for Node.js apps
Using these methods, you can add any of the available libraries to your app.
From the CDN
You can configure partial import of the Firebase JavaScript SDK and only load the Firebase products that you need. Firebase stores each library of the Firebase JavaScript SDK on our global CDN (content delivery network).
To include only specific Firebase products (for example, Authentication and Cloud Firestore), add the following script to the bottom of your
<body>
tag, but before you use any Firebase services:<body> <!-- Insert this script at the bottom of the HTML, but before you use any Firebase services --> <script type="module"> import { initializeApp } from 'https://www.gstatic.com/firebasejs/10.14.0/firebase-app.js' // If you enabled Analytics in your project, add the Firebase SDK for Google Analytics import { getAnalytics } from 'https://www.gstatic.com/firebasejs/10.14.0/firebase-analytics.js' // Add Firebase products that you want to use import { getAuth } from 'https://www.gstatic.com/firebasejs/10.14.0/firebase-auth.js' import { getFirestore } from 'https://www.gstatic.com/firebasejs/10.14.0/firebase-firestore.js' </script> </body>
Add your Firebase configuration object, and then initialize Firebase in your app:
<body> <script type="module"> // ... // TODO: Replace the following with your app's Firebase project configuration const firebaseConfig = { // ... }; // Initialize Firebase const app = initializeApp(firebaseConfig); </script> </body>
Node.js apps
Install the Firebase JavaScript SDK:
If you don't already have a
package.json
file, create one by running the following command from the root of your JavaScript project:npm init
Install the
firebase
npm package and save it to yourpackage.json
file by running:npm install --save firebase@10.14.0
Use one of the following options to use the Firebase module in your app:
You can
require
modules from any JavaScript fileTo include only specific Firebase products (like Authentication and Cloud Firestore):
// Firebase App (the core Firebase SDK) is always required and // must be listed before other Firebase SDKs var firebase = require("firebase/app"); // Add the Firebase products that you want to use require("firebase/auth"); require("firebase/firestore");
You can use ES2015 to
import
modulesTo include only specific Firebase products (like Authentication and Cloud Firestore):
// Firebase App (the core Firebase SDK) is always required and // must be listed before other Firebase SDKs import firebase from "firebase/app"; // Add the Firebase services that you want to use import "firebase/auth"; import "firebase/firestore";
Add your Firebase configuration object, and then initialize Firebase in your app:
import { initializeApp } from 'firebase/app'; // TODO: Replace the following with your app's Firebase project configuration const firebaseConfig = { //... }; // Initialize Firebase const app = initializeApp(firebaseConfig);